lib_crc.h

Port串行通信

    /*******************************************************************\
    *                                                                   *
    *   Library         : lib_crc                                       *
    *   File            : lib_crc.h                                     *
    *   Author          : Lammert Bies  1999                            *
    *   E-mail          : [e-mail]                           *
    *   Language        : ANSI C                                        *
    *                                                                   *
    *                                                                   *
    *   Description                                                     *
    *   ===========                                                     *
    *                                                                   *
    *   The file lib_crc.h contains public definitions  and  proto-     *
    *   types for the CRC functions present in lib_crc.c.               *
    *                                                                   *
    *                                                                   *
    *   Dependencies                                                    *
    *   ============                                                    *
    *                                                                   *
    *   none                                                            *
    *                                                                   *
    *                                                                   *
    *   Modification history                                            *
    *   ====================                                            *
    *                                                                   *
    *   Date        Version Comment                                     *
    *                                                                   *
    *   1999-02-21  1.01    Added FALSE and TRUE mnemonics              *
    *                                                                   *
    *   1999-01-22  1.00    Initial source                              *
    *                                                                   *
    \*******************************************************************/



#define CRC_VERSION     "1.01"



#define FALSE           0
#define TRUE            1



unsigned short          update_crc_16(    unsigned short crc, char c );
unsigned long           update_crc_32(    unsigned long  crc, char c );
unsigned short          update_crc_ccitt( unsigned short crc, char c );